耳じ甲こう介かい

noun

concha of the ear

Anatomical term for the shell-shaped hollow of the external ear.

• 耳じ甲こう介かいは外がい耳じの一いち部ぶで、音おとを集あつめる役やく割わりがある。

  The concha is part of the outer ear and plays a role in collecting sound.